24kV VMV Modular Circuit Breaker

24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
24kV VMV Modular Circuit Breaker
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Description
The 24kV VMV modular circuit breaker, the 3rd generation medium voltage vacuum electrical switch of our company, is a meticulously designed and manufactured embedded poles vacuum circuit breaker. Of an optimized simple structure, this new 24kV modular electrical switch enjoys a longer mechanical lifespan. And its modular spring mechanism enables the equipment to enjoy a higher efficiency and reliable performances.

Features of the 24kV Modular Circuit Breaker
1. This electrical circuit protection device, the 4th generation 24kV power supply breaker, is a scrupulously designed and manufactured electrical switch;
2. This embedded poles vacuum CB employs an improved drive system-the gear drive system and a modular spring operating system;
3. The 2nd generation embedded poles this circuit breaker employs makes the extremely low-resistance vacuum interrupter and the main circuit be sealed by epoxy resin, lending to the breaker a far more reliable insulating property;
4. The built-in charging handles of this 24kV electrical switch could make it easier to carry and hard to lose. The environmental friendly materials it is made of helps to protect our earth;
5. Thanks to great adaptive capacity, this 24kV vacuum circuit breaker can operate smoothly in temperature from -40ºC to 50ºC. Therefore, it could be applied in such harsh environments as the deserts in mid-east, the extremely cold zones in Siberia of Russia and the plateau areas in western China;
6. All vacuum CBs meet the Guobiao standard(GB), Electric Power Industry Standard(DL), IEC standard, DIN standards, as well as related standards of other developed industrial countries;
7. This embedded poles circuit breaker has passed the type tests of Guobiao standards (GB) and IEC standard, as well as the national appraisals;
8. Its mechanical endurance could be up to 60,000 times;
9.This electrical switch has been exported to over 26 countries throughout the world.

Wide Application of the 24kV Modular Circuit Breaker

The exceptionally reliable performances of this electrical circuit breaker enables it to operate smoothly in various areas, such as the power distribution, hydropower plants, wind power plants, thermal power plants, oil and gas companies, offshore operations, and urban infrastructure constructions.

What's more, this electrical switch can be used in many harsh conditions from the freezing areas in Siberia of Russia, the Qinghai-Tibet plateau in China, to the burning hot deserts in Middle East desert.

Spring Operating Mechanism

Modular Operating Mechanism

This modular operating mechanism is another highlight of this 24kV circuit breaker. Since its closing and tripping units are integrated into one independent part, this vacuum CB is quite desirable for standard productions and enjoys a shorter production circle, easier maintenance and convenient replacement. Besides, all the modules consist of components that are universal for all types of the 24kV electrical switch. Therefore, consumers could spend less in the equipment management and maintenance.

Unique Gear Drive System

This 24kV embedded poles circuit breaker employs a unique gear drive system which is of an integral, laconic and compact structure instead of the conventional wheel-chain drive system. As the gear is directly installed in the main shaft, the secondary transmission during charging is avoided. Therefore, the CB could be operate in a more stable way and enjoy a longer mechanical life.

Automatic Circuit Breaker Production Line

All the 24kV modular circuit breaker provided by Minde are manufactured on the automatic circuit breaker production line designed and developed by our own senior engineers according to the production needs and features of our products. Each production process on this production line is controlled and monitored by the computer. Owing to this production line, our manufacturing capacity has been substantially increased and each year we could provide 12,000 breakers to customers.

Quality Control System

To provide quality electrical power equipment is a constant principle of our company. Give this, we have had every CB go through the run-in process and an automatic fault diagnosis before its delivery to lower the early failure rate and ensure good quality of our products.

Every modular circuit breaker is manufactured by advantageous processes and undergoes some conventional tests. This is the very standard way we adopt to ensure all products we provide satisfy the ISO9001: 2008 quality control system standards. Moreover, none a single electrical circuit switch could be delivered unless the quality control department provides a test report signed with the inspector's name, a report that could ensure the tractability and quality of our products.

Successful Application of the 24kV Modular Circuit Breaker

As a professional medium and high voltage circuit breaker manufacturer, Mingde Electrical enjoys a great R&D capacity bashed on which it could provide more safe and quality equipment to you. Among all its products, the electrical circuit protector, the 4th generation 24kV vacuum circuit breaker developed by the company, has gained trusts and favors from customers in various markets.
Thanks to its scientific and advanced design, this 24kV high voltage indoor CB could operate at a high efficiency with less energy consumed. Hence, it has been applied in Beilun Coal Steam-Electric Plant which is located in Ningbo port, Zhejiang province. Besides, as the following picture shows, this embedded poles CB was applied by the Persian Gulf star refinery in Iran.

Technical Standards
All technical parameters of this 24kV indoor embedded poles circuit breaker completely meet the GB1984 AC high-voltage breaker standard, the GB/T 11022 -1999 common specifications for high-voltage electric switch standards, the DL403 standard of China's power industry standards, the IEC62271-100 and IEC56 of IEC standards, as well as related standards of other developed industrial countries.

Technical Parameters of the 24kV Modular Circuit Breaker

NO.ItemUnitTechnical Data
1Rated voltagekV24
2Rated insulating levelRated short time power frequency withstand voltage(1min)65
Rated lighting impulse withstand voltage (peak value)125
3Rated FrequencyHz50
4Rated currentA630,1250,1600,2000,2500
5Rated short circuit breaking currentkA20,25,31.5
6Rated short time withstand current20,25,31.5
7Rated peak withstand current50,63,80
8Rated short-circuit closing current (peak value)50,63,80
94S rated short-time withstand current 4s20,25,31.5
10Rated Dynamic Current50,63,80
11Rated making surge current of capacitor bank12.5(The frequency is less than 1000Hz)
12Rated breaking current of single/symmetrical capacitor bankA630/400
13Duration of rated short-circuit currentS4
14Power frequency withstand voltage of secondary circuitV2000
16Making time ( under Rated voltage )ms≤ 60
17Breaking time ( under Rated voltage )≤ 45
28Rated operating sequence O- θ -CO-180s-CO
29Mechanical lifetimes10000,30000

Boundary Dimensions Figure of the 24kV Modular Circuit Breaker

  • boundary dimension figure of the handcart type
    24kV embedded poles vacuum circuit
    breaker (phase space: 210mm)
  • boundary dimension figure of the handcart type
    24kV modular embedded poles vacuum circuit
    breaker (phase space: 275mm)

Please be noted: displayed above are the dimension figures of part of our products. If you would like to see more, please contact us.

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